/* CSS için temel reset */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

/* Kök değişkenler (Varsayılan - Açık Tema) */
:root {
    --primary-bg: #ffffff; /* Ana arka plan rengi */
    --secondary-bg: #f0f0f0; /* İkincil arka plan rengi, kartlar vb. için */
    --accent-color: #0077cc; /* Vurgu rengi (önceden accent-red ve accent-blue olarak kullanıldı) */
    --text-primary: #333333; /* Birincil metin rengi */
    --text-secondary: #777777; /* İkincil metin rengi (subtitle, paragraf vb.) */
    --border-color: #cccccc; /* Çerçeve ve ayırıcı renkleri */
    --gradient-bg: linear-gradient(135deg, #083daf 0%, rgba(255, 255, 255, 0.1) 50%, #000000 100%);
}

/* Karanlık tema değişkenleri */
[data-theme="dark"] {
    --primary-bg: #0a0a1a;
    --secondary-bg: #1a1a1a;
    --accent-color: #0077cc;
    --text-primary: #e0e0e0;
    --text-secondary: #999999;
    --border-color: #333333;
    --gradient-bg: linear-gradient(135deg, #083daf 0%, rgba(0, 119, 204, 0.1) 50%, #000000 100%);
}

body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    background: var(--primary-bg);
    color: var(--text-primary);
    line-height: 1.6;
    overflow-x: hidden;
    transition: background-color 0.3s ease, color 0.3s ease;
}

/* Menü açık olduğunda scroll engelle */
body.menu-open {
    overflow: hidden;
}

/* Navigasyon */
.navbar {
    position: fixed;
    top: 0;
    width: 100%;
    background: rgba(50, 38, 220, 0.2);
    backdrop-filter: blur(10px);
    z-index: 1000;
    padding: 1rem 0;
    transition: all 0.3s ease;
}

.nav-container {
    max-width: 1200px;
    margin: 0 auto;
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 0 2rem;
}

.logo {
    font-size: 2rem;
    font-weight: bold;
    background: linear-gradient(45deg, var(--accent-color), #ffffff);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.nav-links {
    display: flex;
    list-style: none;
    gap: 2rem;
}

.nav-links a {
    color: #ffffff;
    text-decoration: none;
    font-weight: 500;
    transition: all 0.3s ease;
    position: relative;
}

.nav-links a:hover,
.nav-links a.active {
    color: var(--accent-color);
}

.nav-links a::after {
    content: '';
    position: absolute;
    bottom: -5px;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--accent-color);
    transition: width 0.3s ease;
}

.nav-links a:hover::after,
.nav-links a.active::after {
    width: 100%;
}

/* Tema değiştirme butonu */
.theme-toggle {
    background: var(--secondary-bg);
    border: 2px solid var(--border-color);
    color: var(--text-primary);
    width: 50px;
    height: 50px;
    border-radius: 50%;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.2rem;
    transition: all 0.3s ease;
    margin-left: 1rem;
}

.theme-toggle:hover {
    background: var(--accent-color);
    border-color: var(--accent-color);
    color: white;
    transform: scale(1.1);
}

/* Mobil menü butonu */
.mobile-menu {
    display: none;
    background: none;
    border: none;
    color: var(--text-primary);
    font-size: 1.5rem;
    cursor: pointer;
    padding: 0.5rem;
    transition: all 0.3s ease;
}

.mobile-menu:hover {
    color: var(--accent-color);
}

/* Mobil navigasyon kontrolleri */
.nav-controls {
    display: flex;
    align-items: center;
    gap: 1rem;
}

/* Mobil menü overlay */
.mobile-menu-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.8);
    backdrop-filter: blur(10px);
    z-index: 999;
    opacity: 0;
    visibility: hidden;
    transition: all 0.3s ease;
}

.mobile-menu-overlay.active {
    opacity: 1;
    visibility: visible;
}

/* Hero bölümü */
.hero {
    height: 60vh;
    background: var(--gradient-bg);
    display: flex;
    align-items: center;
    justify-content: center;
    text-align: center;
    position: relative;
    overflow: hidden;
    margin-top: 80px;
}

.hero::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: url('data:image/svg+xml,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 100 100"><defs><pattern id="grid" width="4" height="4" patternUnits="userSpaceOnUse"><path d="M 4 0 L 0 0 0 4" fill="none" stroke="rgba(255,255,255,0.1)" stroke-width="0.5"/></pattern></defs><rect width="100" height="100" fill="url(%23grid)"/></svg>');
    opacity: 0.3;
}

.hero-content {
    max-width: 800px;
    z-index: 2;
    position: relative;
}

.hero h1 {
    font-size: 3rem;
    margin-bottom: 1rem;
    animation: fadeInUp 1s ease;
    color: var(--text-primary); /* Developer sayfasına özgü hero h1 rengi entegre edildi */
}

.hero .subtitle {
    font-size: 1.3rem;
    color: var(--text-secondary);
    animation: fadeInUp 1s ease 0.2s both;
}

/* Container */
.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 5rem 2rem;
}

.section-title {
    text-align: center;
    font-size: 2.5rem;
    margin-bottom: 3rem;
    background: linear-gradient(45deg, var(--text-primary), var(--accent-color));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

/* Hizmetler grid */
.services-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
    margin-bottom: 5rem;
}

.service-card {
    background: var(--secondary-bg);
    padding: 2rem;
    border-radius: 15px;
    border: 1px solid var(--border-color);
    transition: all 0.3s ease;
    position: relative;
    overflow: hidden;
    text-align: center;
}

.service-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(0, 119, 204, 0.1), transparent);
    transition: left 0.5s ease;
}

.service-card:hover::before {
    left: 100%;
}

.service-card:hover {
    transform: translateY(-10px);
    border-color: var(--accent-color);
    box-shadow: 0 20px 40px rgba(0, 119, 204, 0.2);
}

.service-icon {
    font-size: 3rem;
    color: var(--accent-color);
    margin-bottom: 1rem;
}

.service-card h3 {
    font-size: 1.5rem;
    margin-bottom: 1rem;
    color: var(--text-primary);
}

.service-card p {
    color: var(--text-secondary);
    line-height: 1.6;
}

/* Fiyatlandırma bölümü */
.pricing-section {
    background: var(--secondary-bg);
    border-radius: 20px;
    margin-top: 3rem;
}

.pricing-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: 2rem;
    margin-bottom: 4rem;
}

.pricing-card {
    background: var(--primary-bg);
    padding: 2rem;
    border-radius: 15px;
    border: 1px solid var(--border-color);
    text-align: center;
    transition: all 0.3s ease;
    position: relative;
    overflow: hidden;
}

.pricing-card:hover {
    transform: translateY(-10px);
    border-color: var(--accent-color);
    box-shadow: 0 20px 40px rgba(0, 119, 204, 0.2);
}

.pricing-card h3 {
    font-size: 1.4rem;
    margin-bottom: 1rem;
    color: var(--accent-color);
    font-weight: 600;
}

.pricing-card p {
    color: var(--text-secondary);
    margin-bottom: 1.5rem;
    font-size: 0.95rem;
}

.pricing-card ul {
    list-style: none;
    margin-bottom: 2rem;
    text-align: left;
}

.pricing-card li {
    padding: 0.5rem 0;
    color: var(--text-secondary);
    position: relative;
    padding-left: 1.5rem;
    font-size: 0.9rem;
}

.pricing-card li::before {
    content: '✓';
    position: absolute;
    left: 0;
    color: var(--accent-color);
    font-weight: bold;
}

.price {
    font-size: 1.8rem;
    font-weight: bold;
    margin: 1.5rem 0;
    color: var(--text-primary);
}

.price strong {
    color: var(--accent-color);
}

.btn {
    padding: 1rem 2rem;
    border-radius: 50px;
    font-size: 1rem;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s ease;
    width: 100%;
    border: none;
    text-decoration: none;
    display: inline-block;
    text-align: center;
}

.btn-primary {
    background: var(--accent-color);
    color: white;
}

.btn-primary:hover {
    background: #005fa3;
    transform: translateY(-2px);
    box-shadow: 0 10px 25px rgba(0, 119, 204, 0.3);
}

/* Ekstra hizmetler */
.extra-services {
    margin-top: 3rem;
    padding: 2rem;
    background: var(--primary-bg);
    border-radius: 15px;
    border: 1px solid var(--border-color);
}

.extra-services h3 {
    color: var(--accent-color);
    font-size: 1.5rem;
    margin-bottom: 1.5rem;
    text-align: center;
}

.extra-services ul {
    list-style: none;
    max-width: 600px;
    margin: 0 auto;
}

.extra-services li {
    padding: 0.8rem 0;
    color: var(--text-secondary);
    position: relative;
    padding-left: 1.5rem;
    border-bottom: 1px solid var(--border-color);
}

.extra-services li:last-child {
    border-bottom: none;
}

.extra-services li::before {
    content: '+';
    position: absolute;
    left: 0;
    color: var(--accent-color);
    font-weight: bold;
    font-size: 1.2rem;
}

/* Süreç bölümü */
.process {
    margin-top: 5rem;
}

.process-steps {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 2rem;
    max-width: 1000px;
    margin: 0 auto;
}

.process-step {
    background: var(--secondary-bg);
    padding: 2rem;
    border-radius: 15px;
    border: 1px solid var(--border-color);
    text-align: center;
    transition: all 0.3s ease;
    position: relative;
}

.process-step:hover {
    transform: translateY(-5px);
    border-color: var(--accent-color);
    box-shadow: 0 15px 30px rgba(0, 119, 204, 0.1);
}

.process-step h4 {
    color: var(--accent-color);
    font-size: 1.3rem;
    margin-bottom: 1rem;
}

.process-step p {
    color: var(--text-secondary);
    line-height: 1.6;
}

/* Footer */
.footer {
    background: var(--secondary-bg);
    color: var(--text-primary);
    padding: 3rem 1.5rem 1.5rem;
    text-align: center;
    border-top: 1px solid var(--border-color);
    margin-top: 5rem;
}

.footer-container {
    max-width: 1200px;
    margin: 0 auto;
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
    gap: 2.5rem;
    padding-bottom: 2rem;
    border-bottom: 1px solid var(--border-color);
}

.footer-about {
    text-align: center;
}

.footer-logo {
    font-size: 2rem;
    color: var(--accent-color);
    margin-bottom: 1rem;
    font-weight: 700;
}

.footer-about p {
    line-height: 1.6;
    color: var(--text-secondary);
    margin-bottom: 1.5rem;
}

.footer-socials {
    display: flex;
    gap: 1rem;
    justify-content: center;
}

.social-link {
    color: var(--text-secondary);
    font-size: 1.3rem;
    transition: color 0.3s ease;
    text-decoration: none;
}

.social-link:hover {
    color: var(--accent-color);
}

.footer-links h3,
.footer-contact h3 {
    font-size: 1.3rem;
    margin-bottom: 1rem;
    font-weight: 600;
    color: var(--accent-color);
}

.footer-links ul {
    list-style: none;
    padding: 0;
}

.footer-links ul li {
    margin-bottom: 0.8rem;
}

.footer-links ul li a {
    color: var(--text-secondary);
    text-decoration: none;
    transition: color 0.3s ease;
}

.footer-links ul li a:hover {
    color: var(--accent-color);
}

.footer-contact p {
    margin-bottom: 1rem;
    color: var(--text-secondary);
    font-size: 0.95rem;
    display: flex;
    align-items: center;
    gap: 0.6rem;
}

.footer-contact i {
    color: var(--accent-color);
    font-size: 1.1rem;
}

.footer-bottom {
    text-align: center;
    padding: 1rem 0;
    font-size: 0.9rem;
    color: var(--text-secondary);
    margin-top: 1.5rem;
}

/* Animasyonlar */
@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes slideInFromTop {
    from {
        opacity: 0;
        transform: translateY(-20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes slideOutToTop {
    from {
        opacity: 1;
        transform: translateY(0);
    }
    to {
        opacity: 0;
        transform: translateY(-20px);
    }
}

/* Responsive tasarım */
@media (max-width: 768px) {
    .mobile-menu {
        display: block;
    }

    .nav-links {
        display: none;
        position: absolute;
        top: 100%;
        left: 50%;
        transform: translateX(-50%);
        width: 90%;
        max-width: 400px;
        background: var(--primary-bg);
        flex-direction: column;
        padding: 1.5rem;
        gap: 1rem;
        border-radius: 15px;
        border: 1px solid var(--border-color);
        box-shadow: 0 10px 30px rgba(0, 0, 0, 0.3);
        animation: slideOutToTop 0.3s ease forwards;
    }

    .nav-links.active {
        display: flex;
        animation: slideInFromTop 0.3s ease forwards;
    }

    .hero h1 {
        font-size: 2.5rem;
    }

    .hero .subtitle {
        font-size: 1.1rem;
    }

    .services-grid,
    .pricing-grid,
    .process-steps,
    .skills-grid, /* Skills grid eklendi */
    .pricing-cards /* Pricing cards eklendi */ {
        grid-template-columns: 1fr;
    }

    .section-title {
        font-size: 2rem;
    }

    .container {
        padding: 3rem 1rem;
    }

    .pricing-card {
        padding: 1.5rem;
    }

    .footer-socials {
        justify-content: space-evenly;
    }
}

@media (max-width: 480px) {
    .nav-container {
        padding: 0 1rem;
    }

    .hero h1 {
        font-size: 2rem;
    }

    .theme-toggle {
        width: 40px;
        height: 40px;
        font-size: 1rem;
    }

    .pricing-card {
        padding: 1.5rem;
    }

    .service-card,
    .process-step,
    .skill-card /* skill card eklendi */ {
        padding: 1.5rem;
    }

    .section-title {
        font-size: 1.8rem;
    }
    
    .pricing-table { /* Fiyatlandırma tablosu font boyutu */
        font-size: 0.85rem;
    }
}

/* Developer Sayfası Özel Stilleri */
/* developer.css'ten gelen stiller, ana stillerle birleştirildi ve değişkenler kullanıldı */

/* Hero Section - Developer Specific (Ana .hero stili ile birleştirildi) */
.hero {
    height: 60vh; /* Zaten tanımlı, tekrar eden kod kaldırıldı */
    margin-top: 80px; /* Zaten tanımlı, tekrar eden kod kaldırıldı */
}

/* Hero içeriği için font boyutları responsive medyaya taşındı, renk ana değişkene bağlandı */
.hero-content h1 {
    font-size: 3.5rem; /* Genel hero h1'i ezmek için */
    color: var(--text-primary); /* Ana değişkene bağlandı */
}

.hero-content .subtitle {
    font-size: 1.3rem; /* Zaten tanımlı, tekrar eden kod kaldırıldı */
    color: var(--text-secondary); /* Ana değişkene bağlandı */
}

/* Skills Grid (Mevcut grid yapılarına benzer şekilde eklendi) */
.skills-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
    margin: 3rem 0;
}

.skill-card {
    background: var(--secondary-bg);
    padding: 2rem;
    border-radius: 15px;
    border: 1px solid var(--border-color);
    transition: all 0.3s ease;
    text-align: center;
}

.skill-card:hover {
    transform: translateY(-10px);
    box-shadow: 0 15px 30px rgba(0, 119, 204, 0.1);
    border-color: var(--accent-color); /* Vurgu rengi kullanıldı */
}

.skill-icon {
    font-size: 3rem;
    color: var(--accent-color); /* Vurgu rengi kullanıldı */
    margin-bottom: 1.5rem;
}

.skill-card h3 {
    font-size: 1.5rem;
    margin-bottom: 1rem;
    color: var(--text-primary);
}

.skill-card p {
    color: var(--text-secondary);
    line-height: 1.6;
}

/* Projects Section */
.projects {
    margin: 4rem 0;
}

.project-list {
    list-style-type: none;
    margin-top: 2rem;
}

.project-list li {
    background: var(--secondary-bg);
    padding: 1.5rem;
    margin-bottom: 1rem;
    border-radius: 10px;
    border-left: 4px solid var(--accent-color); /* Vurgu rengi kullanıldı */
    transition: all 0.3s ease;
}

.project-list li:hover {
    transform: translateX(10px);
}

.project-list a {
    color: var(--accent-color); /* Vurgu rengi kullanıldı */
    text-decoration: none;
    font-weight: 500;
    transition: all 0.3s ease;
}

.project-list a:hover {
    text-decoration: underline;
}

/* Pricing Section (Developer sayfası için ayrı olan fiyatlandırma birleştirildi) */
.pricing-section.developer-specific { /* Developer sayfasına özel pricing-section için yeni bir sınıf */
    margin: 5rem 0;
}

.pricing-intro {
    text-align: center;
    color: var(--text-secondary);
    margin-bottom: 3rem;
    font-size: 1.1rem;
}

.pricing-cards {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 2rem;
    margin-bottom: 3rem;
}

.pricing-card {
    /* Genel pricing-card stilleri zaten yukarıda var, developer sayfası için özel bir fark yoksa bu tanım kaldırılabilir */
    /* Eğer fark varsa, burada üzerine yazılabilir */
    background: var(--secondary-bg); /* primary-black yerine secondary-bg kullanıldı */
    padding: 2rem;
    border-radius: 15px;
    border: 1px solid var(--border-color);
    transition: all 0.3s ease;
}

.pricing-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 25px rgba(0, 119, 204, 0.1);
    border-color: var(--accent-color); /* Vurgu rengi kullanıldı */
}

.pricing-card h3 {
    font-size: 1.3rem;
    margin-bottom: 1rem;
    color: var(--text-primary);
}

.price {
    font-size: 1.5rem;
    font-weight: bold;
    color: var(--accent-color); /* Vurgu rengi kullanıldı */
    margin-bottom: 1.5rem;
}

.pricing-card ul {
    list-style-type: none;
    margin-bottom: 2rem;
}

.pricing-card ul li {
    margin-bottom: 0.8rem;
    color: var(--text-secondary);
    position: relative;
    padding-left: 1.5rem;
}

.pricing-card ul li::before {
    content: "•";
    color: var(--accent-color); /* Vurgu rengi kullanıldı */
    position: absolute;
    left: 0;
}

.btn-contact {
    width: 100%;
    padding: 1rem;
    background: var(--accent-color); /* Vurgu rengi kullanıldı */
    color: white;
    border: none;
    border-radius: 8px;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s ease;
}

.btn-contact:hover {
    background: #005fa3;
    transform: translateY(-2px);
}

/* Pricing Table */
.table-wrapper {
    overflow-x: auto;
    margin: 3rem 0;
}

.pricing-table {
    width: 100%;
    border-collapse: collapse;
    background: var(--secondary-bg);
    border-radius: 10px;
    overflow: hidden;
}

.pricing-table th, 
.pricing-table td {
    padding: 1rem;
    text-align: left;
    border-bottom: 1px solid var(--border-color);
    color: var(--text-secondary); /* Tablo metin rengi */
}

.pricing-table th {
    background: var(--accent-color); /* Vurgu rengi kullanıldı */
    color: white;
    font-weight: 600;
}

.pricing-table tr:nth-child(even) {
    background: rgba(0, 119, 204, 0.05);
}

.pricing-table tr:hover {
    background: rgba(0, 119, 204, 0.1);
}

/* Modal Styles */
.modal {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.7);
    z-index: 1001;
    align-items: center;
    justify-content: center;
}

.modal-content {
    background: var(--primary-bg);
    padding: 2rem;
    border-radius: 15px;
    max-width: 500px;
    width: 90%;
    position: relative;
    border: 1px solid var(--border-color);
}

.close-btn {
    position: absolute;
    top: 1rem;
    right: 1rem;
    font-size: 1.5rem;
    cursor: pointer;
    color: var(--text-secondary);
    transition: all 0.3s ease;
}

.close-btn:hover {
    color: var(--accent-color); /* Vurgu rengi kullanıldı */
}

.modal-buttons {
    display: flex;
    flex-direction: column;
    gap: 1rem;
    margin-top: 2rem;
}

.modal-btn {
    padding: 1rem;
    background: var(--accent-color); /* Vurgu rengi kullanıldı */
    color: white;
    text-align: center;
    text-decoration: none;
    border-radius: 8px;
    font-weight: 600;
    transition: all 0.3s ease;
}

.modal-btn:hover {
    background: #005fa3;
    transform: translateY(-2px);
}